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L3Harris Technologies

Global defense contractor delivering aerospace tech

Specialist - Cyber Intelligence, Systems Administrator

System AdministrationUpdated on Nov 14
Full-timeSalt Lake City, UT, USANo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree in Cybersecurity, Information Technology, Computer Science, Information Systems, or a related field, or an equivalent combination of education and relevant experience.
  • A bachelor's degree and at least 4 years of prior relevant experience in system administration, cybersecurity operations, or secure systems support; or a graduate degree and at least 2 years of prior related experience; or, in lieu of a degree, at least 8 years of prior related experience.
  • An active Secret security clearance is required.
  • Hands-on experience administering Windows and/or Linux operating systems is preferred.
  • Familiarity with DAAG and the Risk Management Framework (RMF) is preferred.
  • Experience applying security hardening practices, patching, and vulnerability remediation is preferred.
  • Knowledge of system administration in secure or classified environments is preferred.
  • Ability to support compliance documentation and security control implementation is preferred.
  • Experience supporting Department of Defense programs or classified systems is preferred.
  • Familiarity with Security Technical Implementation Guides (STIGs), Assured Compliance Assessment Solution (ACAS), Security Content Automation Protocol (SCAP), Host-Based Security System (HBSS), or similar security tools is preferred.
  • Experience with virtualization technologies such as VMware is preferred.
  • Understanding of Active Directory, Group Policy, identity and access management, and endpoint security solutions is preferred.
  • Knowledge of backup and recovery processes and disaster recovery planning is preferred.
  • Relevant certifications such as Security+, CySA+, CASP+, Linux+, or Microsoft certifications are preferred.
  • Experience working with cross-functional engineering and cybersecurity teams is preferred.

Responsibilities

  • Administer, maintain, and support Windows- and/or Linux-based systems in secure and controlled environments.
  • Perform system configuration, patch management, account management, backups, recovery, and performance monitoring.
  • Implement and maintain cybersecurity controls in accordance with organizational and government requirements.
  • Support system-hardening efforts using Security Technical Implementation Guides (STIGs), security baselines, and best practices.
  • Assist with vulnerability management activities, including scanning, remediation, and mitigation tracking.
  • Support Assessment and Authorization efforts and maintain compliance documentation for accredited systems.
  • Work within the Risk Management Framework (RMF) to support security-control implementation, assessment, and continuous monitoring.
  • Provide support for security audits, inspections, and compliance reviews.
  • Coordinate with Information System Security Managers (ISSMs), Information System Security Officers (ISSOs), engineers, and program stakeholders to resolve system and security issues.
  • Maintain system documentation, standard operating procedures, and configuration-management records.
  • Troubleshoot hardware, software, network, and security-related issues.
  • Support incident-response and recovery activities as required.
  • Ensure systems are operated and maintained in accordance with classified-environment requirements.

About the Company

L3Harris Technologies

Global defense contractor delivering aerospace tech

L3Harris Technologies provides advanced aerospace, defense, and space systems for governments and commercial customers. Its products include sensors, communications, and propulsion—such as tactical radios, night-vision gear, satellite payloads, missile defense, and space propulsion—delivered as integrated systems for operations across air, land, sea, space, and cyber domains. The company blends legacy technologies from two joining giants with newer capabilities, faster acquisition cycles, and a focus on missiles, space, and resilient communications to field solutions quickly. Its goal is to be a trusted, scale-ready provider of next‑generation defense and intelligence capabilities for national security and related customers.

Company size
10,001+
Company stage
IPO
Headquarters
Melbourne, FL
Founded
1895

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